Economists are expecting sales to rebound in the coming months as the warmer weather lures shoppers back to shopping malls and auto dealerships. In March, auto stockpiles at the wholesale level were up 0.2 percent while furniture stockpiles increased 2.2 percent while inventories of computer equipment increased 1.7 percent. First quarter activity was hurt by an unusually severe winter, falling oil prices that triggered a big cutback in investments by energy companies and a rising dollar that has hurt U.S.